Another side video about the unique TEC-Lite indicators that I found inside the NASA C-Start rack module made by Control Data Corp. Enjoy!
NASA Apollo Era Digital Panel - https://youtu.be/KIuYmXT1M1E
Bad Space Movies You Must See - https://youtu.be/0_1dD_4n8Xc
Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#franlab #neon #tube
- Music by Fran Blanche -
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
NASA Apollo Era Digital Panel - https://youtu.be/KIuYmXT1M1E
Bad Space Movies You Must See - https://youtu.be/0_1dD_4n8Xc
Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#franlab #neon #tube
- Music by Fran Blanche -
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
Amazing woman.I have also changed my eye glasses.
pin 1 probably an output that goes to whatever circuit is being operated by the button
Cool and cleverly put together devices.
I bought a panel with 6 of these and some other stuff at a motorcycle swap meet for 5 dollars….I may have given them away. Now I have to go look.
Note the clever reduction of the required Vce for the transistor. The potential divider means that the 150V supply is only 81V on the collector when it's off. When the transistor goes off, the terminal voltage is below the sustain voltage of the neon, so it goes off.
Oh, is the arrow backwards? Being Germanium and all…
Back when most electronic parts were mad3e in the USA.
I wonder if that insulator was Mica rather than Mylar.
O lordy I have a ton of those indicator lites. Typically, though, I will hotglue an LED in there for my own purposes. Behind the lens–and sometimes a tiny loose wad of cotton from a Q-Tip–the LED glows convincingly vintage. I think I got them when I lived in MSP: the home of 3M, Control Data, and so many of these now-defunct American flagships.
I love the homemade musical outtro…
Cool and jazzy…. also have such cool stuff in many video's….the nasa/space stuff..👌👍
I loved the music too.
I think there is a bistable element in the circuit, the neon bulb. It has two states, conducting with low voltage drop, or insulating (off). The pushbutton briefly turns off the transistor and the bulb returns to insulating state.
As Dave Jones would say, "It's FranCad."
I love seeing these devices in such detail. Love the idea of building stuff now using this sort of old school design just for the aesthetics of it.
I am amazed at the build quality of the switches for the era. Very forward thinking was needed and achieved I'd say.